window.addEvent('domready', function() {

	$$('.top_menu li').addEvents({
		'mouseover': function(){ 
			this.addClass('jshover');
		 },
		 'mouseleave': function(){ 		
			allhide()
		}
	});
	
	
	
	$$('.top_menu').addEvents({
		'mouseleave': function(){ 		
			allhide()
		}
	});
	
	function allhide()
	{
		$$('.top_menu li').removeClass('jshover');	
	}
});